Rhodopsin maturation antagonized by dominant rhodopsin mutants.

Journal Article

ninaE(D1), a dominant allele of the major Drosophila rhodopsin gene, expresses a rhodopsin that is predominantly recovered in a 80-kD complex that likely represents rhodopsin dimers. By driving either ninaE(D1) or ninaE+ expression from a heat-shock promoter, we show that the 80-kD rhodopsin complex forms immediately after gene activation. In wild type, but not ninaE(D1), rhodopsin monomeric forms are detected at later times. The generation of monomeric forms of wild-type rhodopsin is suppressed in vitamin A-deprived flies or in flies heterozygous for the dominant rhodopsin mutation. We also show that ninaE(D1) expression does not affect the maturation of another Drosophila visual pigment, Rh3. These results are consistent with the view that the ninaE(D1) rhodopsin antagonizes an early posttranslation process that is specific for maturation of the ninaE-encoded rhodopsin.

Full Text

Duke Authors

Cited Authors

  • Kurada, P; Tonini, TD; Serikaku, MA; Piccini, JP; O'Tousa, JE

Published Date

  • July 1998

Published In

Volume / Issue

  • 15 / 4

Start / End Page

  • 693 - 700

PubMed ID

  • 9682871

International Standard Serial Number (ISSN)

  • 0952-5238

Language

  • eng

Conference Location

  • England